A Punching Flick Keyboard Lets You Type Japanese by Hitting a Cushion
昇竜拳ができる！ストレス解消パンチングフリックインターフェース：M5Flick！！ | ProtoPedia
M5Flick is an input interface that lets users type Japanese by punching a cushion while wearing a red glove. Instead of flicking a phone screen with a finger, the user turns full-body motions into text input, including moves styled after a Shoryuken uppercut.
Creator Hatake / Furukawa built it with M5Stack and UnitV2 hardware, combining text entry with a stress-relief punching interface.
Every bit of typing now requires punching a cushion. Flick input has somehow grown from a fingertip gesture into a full-body sport.